AS31477 Duocast B.V. 🇳🇱 NL

Announcing 55 prefixes, seen at the RIS collectors.

IPv4 prefixes

40,960 (160 × /24)

IPv6 prefixes

18 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS31477
Name: Duocast B.V.
Organisation: Duocast
Country: 🇳🇱 NL
RIR: RIPENCC
Allocated: 2004-05-26
Network type: Content
Traffic levels: 10-20Gbps
Scope: Europe
Peering policy: Open
IRR as-set: RIPE::AS31477:AS-DUOCAST
Website: https://www.duocast.nl
PeeringDB: net/1369
Exchanges: 4
Facilities: 8

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

38 valid (69.1%) 0 invalid (0.0%) 17 no ROA (30.9%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS1299 Arelion (fka. Telia Carrier)	🇸🇪 SE	68,459	109	824	CAIDA
AS2914 NTT America, Inc.	🇺🇸 US	56,082	1,721	334	CAIDA
AS6830 Liberty Global Europe Holding B.V.	🇳🇱 NL	33,326	167	303	inferred
AS50673 Serverius Holding B.V.	🇳🇱 NL	20,094	130	272	CAIDA
AS29632 Netassist International EOOD	🇧🇬 BG	43	0	22	inferred
AS213241 TECHIT.BE SRL	🇧🇪 BE	0	14	17	inferred

Peers

Adjacencies that look settlement-free rather than transit

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6939 Hurricane Electric LLC	🇺🇸 US	54,635	240	481	CAIDA
AS3320 Deutsche Telekom AG	🇩🇪 DE	52,067	926	31	CAIDA
AS4637 Telstra International Limited	🇭🇰 HK	42,362	669	60	CAIDA
AS4657 StarHub Ltd	🇸🇬 SG	35,390	208	61	CAIDA
AS5405 Inter.link GmbH	🇩🇪 DE	28,441	12	2	CAIDA
AS33891 Core-Backbone GmbH	🇩🇪 DE	27,650	1	62	CAIDA
AS20485 JSC TransTeleCom	🇷🇺 RU	26,708	85	64	CAIDA
AS37721 Virtual Technologies & Solutions	🇧🇫 BF	25,408	64	81	CAIDA
AS24482 SG.GS	🇸🇬 SG	20,181	45	80	CAIDA
AS56655 Gigahost AS	🇳🇴 NO	19,502	62	2	CAIDA
AS34927 iFog GmbH	🇨🇭 CH	19,489	40	63	CAIDA
AS13030 Init7 (Switzerland) Ltd.	🇨🇭 CH	305	70	11	CAIDA
AS17639 Converge ICT Solutions Inc.	🇵🇭 PH	229	575	79	CAIDA
AS25091 IP-Max SA	🇨🇭 CH	195	25	3	CAIDA
AS6696 VERIXI SA	🇧🇪 BE	164	49	69	CAIDA
AS12779 IT.Gate S.p.A.	🇮🇹 IT	75	25	59	CAIDA
AS34019 Hivane Association	🇫🇷 FR	39	6	13	CAIDA
AS48362 Stadtwerke Feldkirch	🇦🇹 AT	16	7	57	CAIDA
AS48185 team.blue NV	🇧🇪 BE	14	1	74	CAIDA
AS204092 Association GRIFON	🇫🇷 FR	10	2	65	CAIDA
AS50300 CustodianDC Limited	🇬🇧 GB	9	39	75	CAIDA
AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)	🇳🇱 NL	0	7	78	CAIDA

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS51923 'Nothing But Air' Services B.V.	🇳🇱 NL	2	0	169	CAIDA
AS204751 MobielWerkt B.V.	🇳🇱 NL	2	2	76	CAIDA
AS8312 Bas Smit trading as Zylon	🇳🇱 NL	0	9	420	CAIDA
AS39002 XINDI Networks SRL	🇷🇴 RO	0	2	86	CAIDA
AS35974 Quality Technology Services, LLC	🇺🇸 US	0	2	86	CAIDA
AS198508 Plusine Systems B.V.	🇳🇱 NL	0	6	72	CAIDA
AS51517 Arend Brouwer	🇳🇱 NL	0	4	62	CAIDA
AS29028 DirectVPS B.V.	🇳🇱 NL	0	13	61	CAIDA
AS213052 Bram Wittendorp trading as BittenBytes	🇳🇱 NL	0	1	19	CAIDA
AS218916 Fiscale Inlichtingen en Opsporingsdienst (FIOD)	🇳🇱 NL	0	1	16	CAIDA
AS398300 OCIENT INC	🇺🇸 US	0	7	11	CAIDA
AS198692 Eurofiber Cloud Infra B.V.	🇳🇱 NL	0	2	10	CAIDA
AS201723 R. van der Meijden	🇳🇱 NL	0	1	4	inferred

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.